Weight string for electronic scale detection

Abstract

The utility model discloses a weight string for electronic scale detection, relates to the technical field of electronic scale detection, solves the problem that when a weight needs to be replaced independently, the weight string cannot be replaced, and only a weight group can be replaced, and comprises a fixing frame, and a tension sensor is fixed in the fixing frame through a bolt. A tension sensor is fixed on the upper surface of the fixing frame, a connecting pipe is fixed on the lower surface of the tension sensor, the outer surface of the connecting pipe is sleeved with a weight mechanism used for detecting the electronic scale, a self-locking mechanism used for locking weights is fixed in the connecting pipe in the vertical direction, a mounting frame is fixed on one side of the fixing frame, and a mounting hole is formed in the upper surface of the mounting frame. According to the utility model, through the arrangement of the movable rod, the limiting mechanism can be moved conveniently, the fixation of the weight body is released, the disassembly is convenient, and through the arrangement of the fixing ring, the movable rod can play a role in limiting when moving, and excessive movement is avoided.

Description

Technical Field

[0001] The utility model relates to the field of electronic scale detection, in particular to a weight string for electronic scale detection. Background Art

[0002] The selection and use of weight strings for electronic scale testing is an important part of ensuring the accuracy and reliability of electronic scales. The shape of the weights should be adapted to the shape of the weighing pan of the electronic scale to ensure the accuracy of the calibration. In terms of materials, weights are usually made of stainless steel, cast iron and other materials to ensure their weight stability and durability. As a modern measurement tool, electronic scales are widely used in various fields. To ensure the accuracy of electronic scales, they need to be calibrated and tested regularly.

[0003] The Chinese utility model (Announcement No.: CN210346894U) discloses an electronic scale detection device, which includes a platform, an electronic scale, a weight group, a distance meter, a motor, a control system and a frame; the platform is provided on the base of the frame; the electronic scale is placed on the platform, and the distance meter is provided on the platform; wherein the distance meter is used to measure the size of the electronic scale and obtain the measurement result. It is provided with a motor on the weight group, so that when the electronic scale is calibrated, the weight group can be driven downward by the motor as needed, that is, the first weight group moves toward the electronic scale below it, and a certain number and mass of weights are placed on the electronic scale, so as to calibrate the accuracy and precision of the electronic scale.

[0004] Although the above technical solution realizes the automatic detection by driving the weight group downward through the motor, it is inconvenient to replace the weights. When a weight needs to be replaced alone, it cannot be replaced and only the weight group can be replaced. Therefore, a weight string for electronic scale detection is proposed. Utility Model Content

[0005] In order to improve the problem that when a weight needs to be replaced individually, it cannot be replaced and only the weight group can be replaced, the utility model provides a weight string for electronic scale detection.

[0006] The utility model provides a weight string for electronic scale detection, which adopts the following technical scheme:

[0007] A weight string for detecting an electronic scale comprises a fixing frame, a tension sensor is fixed inside the fixing frame by bolts, a connecting tube is fixed to the lower surface of the tension sensor, a weight mechanism for detecting the electronic scale is sleeved on the outer surface of the connecting tube, a self-locking mechanism for locking the weight is fixed in the vertical direction inside the connecting tube, a mounting frame is fixed to one side of the fixing frame, and a mounting hole is opened on the upper surface of the mounting frame.

[0008] By adopting the above technical solution, the mounting frame is placed in a suitable position, and the mounting frame can be fixed with bolts through the provided mounting holes.

[0009] Optionally, the weight mechanism includes a weight body, the weight body is sleeved on the outer surface of the connecting tube, and the inside of the weight body is telescopically connected to two movable rods.

[0010] By adopting the above technical solution, the movable rod is provided to facilitate the movement of the limiting mechanism, thereby releasing the fixation of the weight body and facilitating disassembly.

[0011] Optionally, a pressure plate is fixed to one end of the two movable rods, and a fixing ring is fixed to the outer surface of the two movable rods.

[0012] By adopting the above technical solution and providing a fixing ring, the movable rod can play a role of limiting when moving, thereby avoiding excessive movement.

[0013] Optionally, a tension spring is fixed to one side of the fixing ring, and a connecting hole is opened inside the weight body.

[0014] By adopting the above technical solution, the movable rod can be pulled to reset under the action of the tension spring itself, which facilitates subsequent disassembly operations.

[0015] Optionally, the self-locking mechanism includes a fixing rod, which is fixed in the vertical direction inside the connecting tube, a limiting rod is fixed in the horizontal direction on the outer surface of the fixing rod, and the outer surface of the limiting rod is sleeved with a spring that is abutted against the fixing rod.

[0016] By adopting the above technical solution, the limit mechanism can be pushed to move under the action of the elasticity of the spring itself, so as to fix the weight body.

[0017] Optionally, the end of the spring is abutted against a fixing block, and an insertion rod penetrating the outer wall of the connecting pipe is fixed to one side of the fixing block.

[0018] By adopting the above technical solution, the weight body is fixed by inserting the insertion rod into the inside of the weight body, which facilitates subsequent disassembly operations.

[0019] Optionally, a slider is fixed to one side of the fixing frame, a lead screw is connected to the inner thread of the slider, a stepping motor is fixed to the upper surface of the lead screw, and a protective shell is provided on the outer surface of the mounting frame.

[0020] By adopting the above technical solution, the set stepper motor can drive the screw rod to rotate, thereby driving the threaded slider to move vertically, and a guide rod can pass through the inside of the slider to ensure the normal operation of the slider.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. The utility model facilitates the movement of the limit mechanism by setting a movable rod, thereby releasing the fixation of the weight body and facilitating disassembly. The fixed ring can limit the movement of the movable rod to avoid excessive movement.

[0023] 2. The utility model can drive the screw rod to rotate through the stepping motor, thereby driving the threaded slider to move vertically, and a guide rod can pass through the inside of the slider to ensure the normal operation of the slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the connecting pipe of the utility model;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of the stepping motor of the utility model;

[0027] Figure 4 This utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0028] Description of reference numerals:

[0029] 1. Fixing bracket; 2. Tension sensor; 3. Connecting tube; 4. Weight body; 401. Pressure plate; 402. Movable rod; 403. Fixing ring; 404. Tension spring; 5. Connecting hole; 6. Fixing rod; 601. Limiting rod; 602. Spring; 603. Fixing block; 604. Insert rod; 7. Slider; 8. Screw rod; 9. Stepping motor; 10. Protective shell; 11. Mounting bracket; 12. Mounting hole. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0031] Please refer to Figure 1-Figure 4 A weight string for detecting an electronic scale comprises a fixing frame 1, a tension sensor 2 is fixed inside the fixing frame 1 by bolts, a connecting pipe 3 is fixed to the lower surface of the tension sensor 2, a weight mechanism for detecting the electronic scale is sleeved on the outer surface of the connecting pipe 3, a self-locking mechanism for locking the weight is fixed in the vertical direction inside the connecting pipe 3, a mounting frame 11 is fixed to one side of the fixing frame 1, a mounting hole 12 is opened on the upper surface of the mounting frame 11, the mounting frame 11 is placed in a suitable position, and the mounting frame 11 can be fixed by bolts through the provided mounting hole 12.

[0032] Reference Figure 1 , Figure 2 and Figure 4 The weight mechanism includes a weight body 4, which is sleeved on the outer surface of the connecting tube 3. The weight body 4 is telescopically connected to two movable rods 402. The movable rods 402 are provided to facilitate the movement of the limit mechanism, thereby releasing the fixation of the weight body 4 and facilitating disassembly;

[0033] A pressure plate 401 is fixed to one end of the two movable rods 402, and a fixing ring 403 is fixed to the outer surface of the two movable rods 402. The setting of the fixing ring 403 can play a limiting role when the movable rod 402 moves to avoid excessive movement; a tension spring 404 is fixed to one side of the fixing ring 403, and a connecting hole 5 is opened inside the weight body 4. Under the action of the tension spring 404 itself, the movable rod 402 can be pulled to reset, which is convenient for subsequent disassembly operations.

[0034] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The self-locking mechanism includes a fixing rod 6, which is fixed in the vertical direction inside the connecting tube 3. A limiting rod 601 is fixed in the horizontal direction on the outer surface of the fixing rod 6. A spring 602 abutting against the fixing rod 6 is sleeved on the outer surface of the limiting rod 601. Under the elasticity of the spring 602, the limiting mechanism can be pushed to move to fix the weight body 4.

[0035] The end of the spring 602 is abutted against a fixed block 603, and an insertion rod 604 that passes through the outer wall of the connecting tube 3 is fixed on one side of the fixed block 603. The insertion rod 604 is inserted into the inside of the weight body 4 to fix the weight body 4, which is convenient for subsequent disassembly operations; a slider 7 is fixed on one side of the fixed frame 1, and a screw rod 8 is connected to the internal thread of the slider 7. A stepper motor 9 is fixed to the upper surface of the screw rod 8. A protective shell 10 is provided on the outer surface of the mounting frame 11. The stepper motor 9 can drive the screw rod 8 to rotate, thereby driving the threaded slider 7 to move vertically, and a guide rod can pass through the inside of the slider 7 to ensure the normal operation of the slider 7.

[0036] The implementation principle of the utility model is as follows: before using the electronic scale to detect the weight string, first place the mounting frame 11 to a suitable position, and through the provided mounting holes 12, the mounting frame 11 can be fixed with bolts. When in use, the provided stepper motor 9 can drive the screw rod 8 to rotate, thereby driving the threaded slider 7 to move vertically, and a guide rod can pass through the inside of the slider 7 to ensure the normal operation of the slider 7. The provided protective shell 10 is made of soft rubber, so that the protective shell 10 can be retracted and extended, which plays a good protective role, driving the weight body 4 to contact the electronic scale, and then detecting the electronic scale, and the tension sensor 2 provided on the fixing frame 1 can detect the weight of the weight body 4, which is convenient to use. When a single weight needs to be removed, the pressure plate 401 on the weight body 4 can be manually pressed to make the movable rod 402 push the insertion rod 604 to move horizontally. At this time, the insertion rod 604 is The push and weight body 4 are separated, thereby releasing the fixation of the weight body 4, and a single weight body 4 can be removed from the connecting tube 3. When the movable rod 402 moves, the fixing ring 403 pulls the tension spring 404 to stretch it. When the weight body 4 is assembled, the connecting hole 5 opened on the weight body 4 is sleeved on the connecting tube 3 and moved. When the weight body 4 and the insertion rod 604 are in contact, due to the inclined surface at the end of the insertion rod 604, the weight body 4 pushes the insertion rod 604 to move horizontally, so that the fixing block 603 pushes the spring 602 to compress. The set limit rod 601 can play a guiding role, and the set fixing rod 6 can ensure the stability of the limit rod 601. When the weight body 4 moves into place, under the action of the elasticity of the spring 602 itself, the fixing block 603 can be pushed to reset, so that the insertion rod 604 is inserted into the inside of the weight body 4, the weight body 4 is fixed, and the subsequent disassembly operation is convenient.

[0037] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A weight string for electronic scale detection, comprising a fixing frame (1), characterized in that: A tension sensor (2) is fixed inside the fixing frame (1) by bolts, a connecting pipe (3) is fixed to the lower surface of the tension sensor (2), a weight mechanism for detecting an electronic scale is sleeved on the outer surface of the connecting pipe (3), a self-locking mechanism for locking the weight is fixed in the vertical direction inside the connecting pipe (3), a mounting frame (11) is fixed to one side of the fixing frame (1), and a mounting hole (12) is provided on the upper surface of the mounting frame (11).

2. The weight string for electronic scale detection according to claim 1, characterized in that: The weight mechanism comprises a weight body (4), wherein the weight body (4) is sleeved on the outer surface of the connecting tube (3), and the interior of the weight body (4) is telescopically connected to two movable rods (402).

3. The weight string for electronic scale detection according to claim 2, characterized in that: A pressing plate (401) is fixed to one end of the two movable rods (402), and a fixing ring (403) is fixed to the outer surface of the two movable rods (402).

4. The weight string for electronic scale detection according to claim 3, characterized in that: A tension spring (404) is fixed to one side of the fixing ring (403), and a connecting hole (5) is provided inside the weight body (4).

5. The weight string for electronic scale detection according to claim 1, characterized in that: The self-locking mechanism comprises a fixing rod (6), the fixing rod (6) being fixed in a vertical direction inside the connecting tube (3), a limiting rod (601) being fixed in a horizontal direction on the outer surface of the fixing rod (6), and a spring (602) being abutted against the fixing rod (6) being sleeved on the outer surface of the limiting rod (601).

6. The weight string for electronic scale detection according to claim 5, characterized in that: The end of the spring (602) is butt-connected with a fixing block (603), and an insertion rod (604) penetrating the outer wall of the connecting pipe (3) is fixed to one side of the fixing block (603).

7. The weight string for electronic scale detection according to claim 1, characterized in that: A slider (7) is fixed to one side of the fixing frame (1), a screw rod (8) is connected to the inner thread of the slider (7), a stepping motor (9) is fixed to the upper surface of the screw rod (8), and a protective shell (10) is provided on the outer surface of the mounting frame (11).

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